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Finding the Fourth Proportional to 3,875.51, 5,813.27 and 3,188.74

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Solution

The fourth proportional to 3,875.51, 5,813.27 and 3,188.74 is: 4,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.51 : 5,813.27 = 3,188.74 : x
  2. Step 2: Convert to fraction form
    3,875.51/5,813.27 = 3,188.74/x
  3. Step 3: Cross multiply
    3,875.51x = 5,813.27 × 3,188.74
  4. Step 4: Simplify right side
    3,875.51x = 18,536,961.57
  5. Step 5: Solve for x
    x = 18,536,961.57/3,875.51
  6. Step 6: Final answer
    x = 4,783.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.